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Finding the Fourth Proportional to 55,723.44, 83,490.80 and 39,847.86

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Solution

The fourth proportional to 55,723.44, 83,490.80 and 39,847.86 is: 59,704.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,723.44 : 83,490.80 = 39,847.86 : x
  2. Step 2: Convert to fraction form
    55,723.44/83,490.80 = 39,847.86/x
  3. Step 3: Cross multiply
    55,723.44x = 83,490.80 × 39,847.86
  4. Step 4: Simplify right side
    55,723.44x = 3,326,929,709.69
  5. Step 5: Solve for x
    x = 3,326,929,709.69/55,723.44
  6. Step 6: Final answer
    x = 59,704.31

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